package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import jakarta.servlet.http.HttpServletRequest;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee emloyee) {
        //1.将页面提交的密码password进行Md5加密处理
        String password = emloyee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        //2.根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, emloyee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);
        //3.如果没有查询到则返回登录失败结果
        if (emp == null) {
            return R.error("登录失败");
        }
        //4.密码比对，如果不一样返回登录失败
        if (!emp.getPassword().equals(password)) {
            return R.error("登录失败");
        }
        //5.查看员工状态，是否被禁用
        if (emp.getStatus() == 0) {
            return R.error("账号已禁用");
        }
        //6.登录成功，将员工id存入Session并返回登录成功
        System.out.println(emp + "," + emp.getPassword());
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);
    }

    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    @PostMapping
    @CacheEvict(value = "employeeCache",allEntries = true)
    public R<String> save(@RequestBody Employee employee) {
        log.info("新增{}", employee.toString());
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);
        employeeService.save(employee);
        return R.success("新增员工成功");

    }

    @GetMapping("/page")
    @Cacheable(value = "employeeCache",key = "#page+'_'+#pageSize+'_'+#name")

    public R<Page> page(int page, int pageSize, String name) {
        Page pageInfo = new Page(page, pageSize);
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<Employee>();
        if (name != null) queryWrapper.like(Employee::getName, name);
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        employeeService.page(pageInfo, queryWrapper);
        log.info("查询结果：size={},total={}", pageInfo.getSize(), pageInfo.getTotal());
        return R.success(pageInfo);
    }

    @PutMapping
    @CacheEvict(value = "employeeCache",allEntries = true)
    public R<String> update(@RequestBody Employee employee) {
//        Long empId = (Long) request.getSession().getAttribute("employee");

//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);
        employeeService.updateById(employee);
        return R.success("员工信息修改成功");
    }

    @GetMapping("/{id}")
    @Cacheable(value = "employeeCache",key = "#id")
    public R<Employee> getById(@PathVariable Long id) {
        Employee employee = employeeService.getById(id);
        if (employee != null) return R.success(employee);
        return R.error("没有查询到对应员工信息");
    }
}
